I thought it very interesting to hear how the elder, in finalizing his accusation of "apostasy", refers to the Biblical account where the false religious leaders accused Paul of apostasy.
The foundation of the accusation of apostasy then is based on the accusation by the false religious vipers who accused Paul of wrongdoing.
They were saying that just as Paul was an apostate, so are you.
Interesting indeed.
They paralleled their own actions alongside the children of Satan who both accused Paul and slew our Lord on Golgotha.